Hi, I have a 2014 Impala 2LT with 6300 miles on it. I took it in for the seat wiring harness recall to be done. I asked the service guy if anything else was done and he told me no. But since picking up the car the Lane departure warning does not work. I even called back and asked if there was a reflash for the PCM that was done and he still says that nothing else was done to the car. I was wondering if anyone knew of a reflash or anything else that could have been done that would render the Lane departure Warning inoperable. Thanks..